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Mapping of specific areas of management using indirect techniques in oxisols under cultivation of cane sugar

Abstract

The present project aims to: a) assess the potential of using indirect techniques ( diffuse reflectance spectroscopy , magnetic susceptibility and x -ray fluorescence ) in the characterization of the physical, chemical and mineralogical soil b ) mapping of specific area of management in commercial area from functions c ) assessing the accuracy of maps of soil attributes generated by pedotranfer functions. Analyzes will be conducted mineralogical, chemical , textural , diffuse reflectance spectroscopy , magnetic susceptibility and fluorescence spectrometry x-rays . All attributes will be subjected to statistical analysis and geostatistics to assess dependence and spatial variability and multiple regressions . Pedotransfer functions will be calibrated and validated for prediction of soil attributes using mostly iron oxides as predictors . Maps using the values of soil attributes predicted in the two areas will be constructed and validated for accuracy . (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TEIXEIRA, DANIEL D. B.; MARQUES, JR., JOSE; SIQUEIRA, DIEGO S.; VASCONCELOS, VINICIUS; CARVALHO, JR., OSMAR A.; MARTINS, EDER S.; PEREIRA, GENER T.. Mapping units based on spatial uncertainty of magnetic susceptibility and clay content. CATENA, v. 164, p. 79-87, . (13/25118-4)
TEIXEIRA, DANIEL D. B.; MARQUES, JR., JOSE; SIQUEIRA, DIEGO S.; VASCONCELOS, VINICIUS; CARVALHO, JR., OSMAR A.; MARTINS, EDER S.; PEREIRA, GENER T.. Sample planning for quantifying and mapping magnetic susceptibility, clay content, and base saturation using-auxiliary information. Geoderma, v. 305, p. 208-218, . (13/25118-4)
BARBOSA, RONNY SOBREIRA; MARQUES JUNIOR, JOSE; BARRON, VIDAL; MARTINS FILHO, MARCILIO VIEIRA; SIQUEIRA, DIEGO SILVA; PELUCO, RAFAEL GONCALVES; CAMARGO, LIVIA ARANTES; SILVA, LAERCIO SANTOS. Prediction and mapping of erodibility factors (USLE and WEPP) by magnetic susceptibility in basalt-derived soils in northeastern SAo Paulo state, Brazil. ENVIRONMENTAL EARTH SCIENCES, v. 78, n. 1, . (13/25118-4)
CAMARGO, LIVIA ARANTES; MARQUES JUNIOR, JOSE; BARRON, VIDAL; FERRACCIU ALLEONI, LUIS REYNALDO; BARBOSA, RONNY SOBREIRA; PEREIRA, GENER TADEU. Mapping of clay, iron oxide and adsorbed phosphate in Oxisols using diffuse reflectance spectroscopy. Geoderma, v. 251, p. 124-132, . (13/25118-4)

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